Mill is a board game for two people, played on a special board with nine pieces. The board has three 'concentric' squares linked at the mid points of their sides. The game has three stages, but the aim of the game is to get three pieces in a line - called a mill. On forming a mill, one of the opponent's pieces is removed from the board and the player who reduces an opponent's remaining pieces to two wins the game. The opening stage begins with an empty board. Each player has nine pieces which are placed one at a time in turn on any vacant point on the board until both have played all nine.